News tagged with nuclear membrane
Research reveals novel transport mechanism for large ribonucleoproteins
The movement of genetic materials, such as RNA and ribosomes, from the nucleus to the cytoplasm is a critical component in a cell's ability to make the proteins necessary for essential biological functions. Until now, it ...
May 10, 2012 |
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New insights on an old polymer material, Nafion, will enable design of better batteries
Designing new materials depends upon understanding the properties of today's materials. One such material, Nafion, is a polymer that efficiently conducts ions (a polymer electrolyte) and water through its ...
Jun 19, 2011 |
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Plutonium tricks cells by 'pretending' to be iron
(PhysOrg.com) -- Plutonium gets taken up by our cells much as iron does, even though there's far less of it to go around.
Jul 11, 2011 |
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Nuclear pore complexes harbor new class of gene regulators
Nuclear pore complexes are best known as the communication channels that regulate the passage of all molecules to and from a cell's nucleus. Researchers at the Salk Institute for Biological Studies, however, ...
Feb 04, 2010 |
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New research supports model for nuclear pore complex
(PhysOrg.com) -- To protect their DNA, cells in higher organisms are very choosy about what they allow in and out of their nuclei, where the genes reside. Guarding access is the job of transport machines called nuclear pore ...
Aug 18, 2009 |
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A cell's 'cap' of bundled fibers could yield clues to disease (w/ Video)
It turns out that wearing a cap is good for you, at least if you are a mammal cell.
Dec 02, 2009 |
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Chromosomes dance and pair up on the nuclear membrane (w/ Video)
(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the ...
Nov 13, 2009 |
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An atomic-level look at an HIV accomplice
(PhysOrg.com) -- Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of ...
Nov 19, 2009 |
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Research identifies 3-D structure of key nuclear pore building block
The genome of complex organisms is stashed away inside each cell's nucleus, a little like a sovereign shielded from the threatening world outside. The genome cannot govern from its protective chamber, however, without knowing ...
Jun 07, 2009 |
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Engineers probe mechanics behind rapid-aging disease
Researchers at MIT and Carnegie Mellon University are using both civil engineering and bioengineering approaches to study the behavior of a protein associated with progeria, a rare disorder in children that causes extremely ...
Sep 14, 2011 |
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New technique enables study of 'challenging' proteins
Researchers from Hull, Bristol and Frankfurt have shown that a new technique for identifying molecular structure can be used effectively on small samples of biological proteins, particularly proteins that are targeted for ...
Nov 14, 2011 |
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Nuclear pores call on different assembly mechanisms at different cell cycle stages
Nuclear pores are the primary gatekeepers mediating communication between a cell's nucleus and its cytoplasm. Recently these large multiprotein transport channels have also been shown to play an essential ...
Jun 10, 2010 |
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Come on in: Nuclear barrier less restrictive than expected in new cells
When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their outer boundary, while ...
Oct 06, 2009 |
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